Rocks and Minerals
Rocks are made of minerals, and the three main types are igneous, sedimentary and metamorphic.
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Rocks are made of minerals, and the three main types are igneous, sedimentary and metamorphic.
- Granite is igneous
- Limestone is sedimentary
- Marble is metamorphic
🧠 Quick quiz
Three questions. Score 2 or more to complete the topic.
What is Rocks and Minerals?
Within Earth & Environmental Science, which covers our planet, its resources and ecosystems, and how people can protect the environment, this topic explains Rocks and Minerals. Earth and environment topics show how the planet’s systems shape landscapes, climate and life, with models that make these processes visible.
Check that you can explain Rocks and Minerals in your own words and give one example from everyday life. If you can do that, you have understood the core idea.
Understanding Rocks and Minerals helps you explain the environment around you and weigh up how people can protect it.
Rocks and Minerals in detail
Minerals are naturally occurring, solid inorganic substances with a definite chemical composition and crystal structure, such as quartz, feldspar, calcite and mica. Rocks are made from one or more minerals. Minerals are identified by properties including colour, hardness (the Mohs scale), streak, lustre and cleavage.
The three rock types are igneous (from cooled magma), sedimentary (from compacted sediments) and metamorphic (changed by heat and pressure). Rocks and minerals provide building materials, metals, fuels and gems, but extraction affects the environment. Their study helps us to understand Earth's history.
How the interactive helps you understand Rocks and Minerals
Click a card to flip it and reveal the answer, then move on to the next one.
Before you change anything, predict the result. Then change one value at a time and check whether your prediction was right. This is a quick way to build a correct mental model of Rocks and Minerals.
Real-life uses and examples
- Use a diagram of Rocks and Minerals to describe the steps of a process in order.
- Discuss how human activity changes Rocks and Minerals, using a named example.
- Explain how Rocks and Minerals affects the landscape or climate near you.
Common mistakes to avoid
- Describing a process without the timescale it works over.
- Presenting one cause as the only cause of an environmental change.
- Learning the definition without testing it. Use the quiz and the interactive to check that you can apply the idea.
Frequently asked questions about Rocks and Minerals
What is Rocks and Minerals?
Rocks are made of minerals, and the three main types are igneous, sedimentary and metamorphic.
What are the most important points about Rocks and Minerals?
The main points are: Granite is igneous; Limestone is sedimentary; Marble is metamorphic.
Why is Rocks and Minerals useful?
Understanding Rocks and Minerals helps you explain the environment around you and weigh up how people can protect it.
How can I practise Rocks and Minerals?
Open the interactive at the top of this page and change the controls one at a time. Predict the result before each change, then take the three-question quiz. A score of two or more marks the topic as complete on this device.
Which topics are related to Rocks and Minerals?
Related topics in Earth & Environmental Science include Weathering and Erosion, Volcanoes and Their Products, The Atmosphere.